Mathematical Sciences Classification System
35Qxx - Equations of mathematical physics and other areas of application 
[See also  35J05,  35J10,  35K05,  35L05]
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                            35Q05Euler-Poisson-Darboux equations
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                            35Q15
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                            35Q20Boltzmann equations
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                            35Q30
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                            35Q31
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                            35Q35PDEs in connection with fluid mechanics
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                            35Q40PDEs in connection with quantum mechanics
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                            35Q41Time-dependent Schrödinger equations, Dirac equations
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                            35Q51Soliton-like equations [See also 37K40]
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                            35Q53KdV-like equations (Korteweg-de Vries) [See also 37K10]
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                            35Q55NLS-like equations (nonlinear Schrödinger) [See also 37K10]
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                            35Q56Ginzburg-Landau equations
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                            35Q58
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                            35Q60PDEs in connection with optics and electromagnetic theory
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                            35Q61Maxwell equations
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                            35Q62PDEs in connection with statistics
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                            35Q68PDEs in connection with computer science
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                            35Q70PDEs in connection with mechanics of particles and systems
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                            35Q72Other equations from mechanics
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                            35Q74PDEs in connection with mechanics of deformable solids
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                            35Q75PDEs in connection with relativity and gravitational theory
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                            35Q76Einstein equations
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                            35Q79PDEs in connection with classical thermodynamics and heat transfer
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                            35Q80Appllications of PDE in areas other than physics
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                            35Q82PDEs in connection with statistical mechanics
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                            35Q83Vlasov-like equations
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                            35Q84Fokker-Planck equations
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                            35Q85PDEs in connection with astronomy and astrophysics
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                            35Q86PDEs in connection with geophysics
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                            35Q90PDEs in connection with mathematical programming
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                            35Q91PDEs in connection with game theory, economics, social and behavioral sciences
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                            35Q92PDEs in connection with biology and other natural sciences
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                            35Q93PDEs in connection with control and optimization
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                            35Q94PDEs in connection with information and communication
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                            35Q99None of the above, but in this section